1. Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, P.R. China;
2. Zhejiang Provincial Corps Hospital of Chinese People's Armed Police Forces, Jiaxing, Zhejiang, P.R. China;
3. Jiangsu Engineering Research Center for New-Type External and Transdermal Preparations, Changzhou, P.R. China